| 黑洞周围一般轨道发光环的坐标系拖曳(FD)特征 |
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| 引用本文： | 马振国.黑洞周围一般轨道发光环的坐标系拖曳(FD)特征[J].天文学报,2000,41(2):153-162. |
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| 作者姓名： | 马振国 |
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| 作者单位： | 中国科学院北京天文台,北京100012 |
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| 摘 要： | 根据Ｋｅｒｒ度规下粒子运动的一般方程，计算黑洞周围一般轨道单色发光环的谱线轮廓，获得了坐标系曳（ＦＤ）的特征。结果表明，原谱线发生分裂，呈现具有伴峰的双主峰轮廓，且随参数变化峰型差异明显；谱线全部发生谱移，计算参数下谱移量为负０．５到１．５；并且应用上述ＦＤ的证据，结合ＭＣＧ－６－３０－１５实际观测结果，讨论了利用发射谱线获得黑洞相关信息的可行性。
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| 关 键 词： | 黑洞 发光环 坐标系拖曳 轨道 |
| 修稿时间： | 1999-01-04 |
FRAME-DRAGGING EFFECT OF A LUMINOUS RING IN THE GENERALIZED ORBITS AROUND A BLACK HOLE |
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| MA Zhen-Guo.FRAME-DRAGGING EFFECT OF A LUMINOUS RING IN THE GENERALIZED ORBITS AROUND A BLACK HOLE[J].Acta Astronomica Sinica,2000,41(2):153-162. |
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| Authors: | MA Zhen-Guo |
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| Institution: | MA Zhen-Guo
;(Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012) |
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| Abstract: | This paper describes the investigation of the observed line profiles with the frame-dragging (FD) effect by a luminous monochromatic ring in the generalized orbits around a Kerr black hole (BH). The equations governing the generalized orbital trajectory of particles in the ring are used. The results indicate that not all the frequency-shifted profiles of the emission lines can be demonstrated distinctly with any value of the dimensionless specific angular momentum and the inclination angle. All the lines exhibiting - 0.5-1.5 redshifts have broad and significantly asymmetric double-peaked profiles. Finally, discussions on the information of BHs acquired from FD profiles are presented. |
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| Keywords: | black hole luminous ring frame-dragging (FD) |
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